<template>
	<view>
		<view class="tabr" :style="{top:headerTop}">
			<view :class="{on:typeClass=='valid'}" @tap="switchType('valid')">可用({{couponValidList.length}})</view><view :class="{on:typeClass=='invalid'}"  @tap="switchType('invalid')">已失效</view>
			<view class="border" :class="typeClass"></view>
		</view>
		<view class="place" ></view>
		<view class="list">
			<!-- 优惠券列表 -->
			<view class="sub-list valid" :class="subState">
				<view class="tis" v-if="couponValidList.length==0">没有数据~</view>
				<view class="row" v-for="(row,index) in couponValidList" :key="index" >
					<!-- 删除按钮 -->
					<view class="menu" @tap.stop="deleteCoupon(row.id,couponValidList)">
						<view class="icon shanchu"></view>
					</view>
					<!-- content -->
					<view class="carrier" :class="[typeClass=='valid'?theIndex==index?'open':oldIndex==index?'close':'':'']" @touchstart="touchStart(index,$event)" @touchmove="touchMove(index,$event)" @touchend="touchEnd(index,$event)">
						<view class="left">
							<view class="title">
								{{row.title}}
							</view>
							<view class="term">
								{{row.termStart}} ~ {{row.termEnd}}
							</view>
							<view class="gap-top"></view>
							<view class="gap-bottom"></view>
						</view>
						<view class="right">
							<view class="ticket">
								<view class="num">
									{{row.ticket}}
								</view>
								<view class="unit">
									元
								</view>
							</view>
							<view class="criteria">
								{{row.criteria}}
							</view>
							<view class="use">
								去使用
							</view>
						</view>
					</view>
				</view>
			</view>
			<!-- 已失效列表中的优惠券展示 -->
			<view class="sub-list invalid" :class="subState">
			    <view class="tis" v-if="couponinvalidList.length==0">没有数据~</view>
			    <view class="row" v-for="(row,index) in couponinvalidList" :key="index" >
			        <!-- 删除按钮 -->
			        <view class="menu" @tap.stop="deleteCoupon(row.id,couponinvalidList)">
			            <view class="icon shanchu"></view>
			        </view>
			        <!-- content -->
			        <view class="carrier" :class="[typeClass=='invalid'?theIndex==index?'open':oldIndex==index?'close':'':'']" @touchstart="touchStart(index,$event)" @touchmove="touchMove(index,$event)" @touchend="touchEnd(index,$event)">
			            <view class="left">
			                <view class="title">
			                    {{row.title}}
			                </view>
			                <view class="term">
			                    {{row.termStart}} ~ {{row.termEnd}}
			                </view>
			                <!-- 根据isUsed字段显示不同的状态图标 -->
			                <view class="icon" :class="row.isUsed === 1 ? 'yishiyong' : 'shixiao'">
			                    
			                </view>
			                <view class="gap-top"></view>
			                <view class="gap-bottom"></view>
			            </view>
			            <view class="right invalid">
			                <view class="ticket">
			                    <view class="num">
			                        {{row.ticket}}
			                    </view>
			                    <view class="unit">
			                        元
			                    </view>
			                </view>
			                <view class="criteria">
			                    {{row.criteria}}
			                </view>
			                <view class="use">
			                    <!-- 根据使用状态显示不同文字 -->
			                    {{row.isUsed === 1 ? '已使用' : '已过期'}}
			                </view>
			            </view>
			        </view>
			    </view>
			</view>
		</view>
		
	</view>
</template>

<script>
import api from '@/utils/api'

export default {
    data() {
        return {
            couponValidList: [],
            couponinvalidList: [],
            headerTop: 0,
            //控制滑动效果
            typeClass: 'valid',
            subState: '',
            theIndex: null,
            oldIndex: null,
            isStop: false
        }
    },
    onPageScroll(e){
        
    },
    //下拉刷新，需要自己在page.json文件中配置开启页面下拉刷新 "enablePullDownRefresh": true
    onPullDownRefresh() {
        setTimeout(function () {
            uni.stopPullDownRefresh();
        }, 1000);
    },
    onLoad() {
        // 页面加载时获取优惠券数据
        this.loadCouponData();
        
        //兼容H5下排序栏位置
        // #ifdef H5
            //定时器方式循环获取高度为止，这么写的原因是onLoad中head未必已经渲染出来。
            let Timer = setInterval(()=>{
                let uniHead = document.getElementsByTagName('uni-page-head');
                if(uniHead.length>0){
                    this.headerTop = uniHead[0].offsetHeight+'px';
                    clearInterval(Timer);//清除定时器
                }
            },1);
        // #endif
    },
    methods: {
        // 加载优惠券数据
        async loadCouponData() {
            try {
                const response = await api.getMyCouponList();
                if (response.code === 200) {
                    // 根据优惠券的使用状态和有效期判断，分配到不同列表
                    const currentTime = new Date().getTime();
                    const validCoupons = [];
                    const invalidCoupons = [];
                    
                    response.data.forEach(coupon => {
                        const endTime = new Date(coupon.termEnd).getTime();
                        // 判断优惠券状态：未过期且未使用的为可用，其他为已失效
                        if (endTime > currentTime && coupon.isUsed === 0) {
                            validCoupons.push(coupon);
                        } else {
                            // 已过期或已使用的都归为已失效
                            invalidCoupons.push(coupon);
                        }
                    });
                    
                    this.couponValidList = validCoupons;
                    this.couponinvalidList = invalidCoupons;
                } else {
                    uni.showToast({
                        title: response.msg || '获取优惠券失败',
                        icon: 'none'
                    });
                }
            } catch (error) {
                console.error('获取优惠券数据失败:', error);
                uni.showToast({
                    title: '网络请求失败',
                    icon: 'none'
                });
            }
        },
        switchType(type){
            if(this.typeClass==type){
                return ;
            }
            uni.pageScrollTo({
                scrollTop:0,
                duration:0
            })
            this.typeClass = type;
            this.subState = this.typeClass==''?'':'show'+type;
            setTimeout(()=>{
                this.oldIndex = null;
                this.theIndex = null;
                this.subState = this.typeClass=='valid'?'':this.subState;
            },200)
        },
        //控制左滑删除效果-begin
        touchStart(index,event){
            //多点触控不触发
            if(event.touches.length>1){
                this.isStop = true;
                return ;
            }
            this.oldIndex = this.theIndex;
            this.theIndex = null;
            //初始坐标
            this.initXY = [event.touches[0].pageX,event.touches[0].pageY];
        },
        touchMove(index,event){
            //多点触控不触发
            if(event.touches.length>1){
                this.isStop = true;
                return ;
            }
            let moveX = event.touches[0].pageX - this.initXY[0];
            let moveY = event.touches[0].pageY - this.initXY[1];
            
            if(this.isStop||Math.abs(moveX)<5){
                return ;
            }
            if (Math.abs(moveY) > Math.abs(moveX)){
                // 竖向滑动-不触发左滑效果
                this.isStop = true;
                return;
            }
            
            if(moveX<0){
                this.theIndex = index;
                this.isStop = true;
            }else if(moveX>0){
                if(this.theIndex!=null&&this.oldIndex==this.theIndex){
                    this.oldIndex = index;
                    this.theIndex = null;
                    this.isStop = true;
                    setTimeout(()=>{
                        this.oldIndex = null;
                    },150)
                }
            }
        },
        
        touchEnd(index,$event){
            //解除禁止触发状态
            this.isStop = false;
        },
        
        //删除商品
        deleteCoupon(id,List){
            let len = List.length;
            for(let i=0;i<len;i++){
                if(id==List[i].id){
                    List.splice(i, 1);
                    break;
                }
            }
            this.oldIndex = null;
            this.theIndex = null;
        },
        
        discard() {
            //丢弃
        }
        
        
    }
}
</script>
<style lang="scss">
	view{
		display: flex;
		flex-wrap: wrap;
		
	}
	page{position: relative;background-color: #f5f5f5;}
	.hidden{
		display: none !important;
	}
	.place{
		width: 100%;
		height: 95upx;
	}
	.tabr{
		background-color: #fff;
		width: 94%;
		height: 95upx;
		padding: 0 3%;
		border-bottom: solid 1upx #dedede;
		position: fixed;
		top: 0;
		z-index: 10;
		view{
			width: 50%;
			height: 90upx;
			justify-content: center;
			align-items: center;
			font-size: 32upx;
			color: #999;
		}
		.on{
			color: #f06c7a;
		}
		.border{
			height: 4upx;
			background-color: #f06c7a;
			transition: all .3s ease-out;
			&.invalid{
				transform: translate3d(100%,0,0);
			}
		}
		
	}
	.list{
		width: 100%;
		display: block;
		position: relative;
	}
	@keyframes showValid {
		0% {transform: translateX(-100%);}100% {transform: translateX(0);}
	}
	@keyframes showInvalid {
		0% {transform: translateX(0);}100% {transform: translateX(-100%);}
	}
	.sub-list{
		&.invalid{
			position: absolute;
			top: 0;
			left:100%;
			display: none;
		}
		&.showvalid{
			display: flex;
			animation: showValid 0.20s linear both;
		}
		&.showinvalid{
			display: flex;
			animation: showInvalid 0.20s linear both;
		}
		width: 100%;
		padding: 20upx 0 120upx 0;
		.tis{
			width: 100%;
			height: 60upx;
			justify-content: center;
			align-items: center;
			font-size: 32upx;
		}
		.row{
			width: 92%;
			height: 24vw; 
			margin: 20upx auto 10upx auto;
			border-radius: 8upx;
			// box-shadow: 0upx 0 10upx rgba(0,0,0,0.1);
			align-items: center;
			position: relative;
			overflow: hidden;
			z-index: 4;
			border: 0;
			.menu{
				.icon{
					color: #fff;
					font-size:50upx;
				}
				position: absolute;
				width: 28%;
				height: 100%;
				right: 0;
				justify-content: center;
				align-items: center;
				background-color: red;
				color: #fff;
				z-index: 2;
			}
			.carrier{
				@keyframes showMenu {
					0% {transform: translateX(0);}100% {transform: translateX(-28%);}
				}
				@keyframes closeMenu {
					0% {transform: translateX(-28%);}100% {transform: translateX(0);}
				}
				&.open{
					animation: showMenu 0.25s linear both;
				}
				&.close{
					animation: closeMenu 0.15s linear both;
				}
				background-color: #fff;
				position: absolute;
				width: 100%;
				padding: 0 0;
				height: 100%;
				z-index: 3;
				flex-wrap: nowrap;
				.left{
					width: 100%;
					.title{
						padding-top: 3vw;
						width: 90%;
						margin: 0 5%;
						font-size: 36upx;
					}
					.term{
						width: 90%;
						margin: 0 5%;
						font-size: 26upx;
						color: #999;
					}
					position: relative;
					.gap-top,.gap-bottom{
						position: absolute;
						width: 20upx;
						height: 20upx;
						right: -10upx;
						border-radius: 100%;
						background-color: #f5f5f5;
					}
					.gap-top{
						top: -10upx;
					}
					.gap-bottom{
						bottom: -10upx;
					}
					.shixiao{
						position: absolute;
						right: 20upx;
						font-size: 150upx;
						z-index: 6;
						color: rgba(238, 130, 127, 0.3); // 使用主题色的透明版本
					}
				}
				.right{
					flex-shrink: 0;
					width: 28%;
					color: #fff;
					background:linear-gradient(to right,#ec625c,#ee827f);
					&.invalid{
						background:linear-gradient(to right,#aaa,#999);
						.use{
							color: #aaa;
						}
					}
					justify-content: center;
					.ticket,.criteria{width: 100%;}
					.ticket{
						padding-top: 1vw;
						justify-content: center;
						align-items: baseline;
						height: 6vw;
						.num{
							font-size: 42upx;
							font-weight: 600;
						}
						.unit{
							font-size: 24upx;
						}
					}
					.criteria{
						justify-content: center;
						
						font-size: 28upx;
					}
					.use{
						width: 50%;
						height: 40upx;
						justify-content: center;
						align-items: center;
						font-size: 24upx;
						background-color: #fff;
						color: #ee827f;
						border-radius: 40upx;
						padding: 0 10upx;
					}
				}
			}
			/*
			<view class="carrier" :class="[theIndex==index?'open':oldIndex==index?'close':'']" @touchstart="touchStart(index,$event)" @touchmove="touchMove(index,$event)" @touchend="touchEnd(index,$event)">
				<view class="left">
					<view class="title">
						10元日常用品类
					</view>
					<view class="term">
						2019-04-01~2019-05-30
					</view>
				</view>
				<view class="right">
					<view class="ticket">
						<view class="num">
							10
						</view>
						<view class="unit">
							元
						</view>
					</view>
					<view class="criteria">
						满50使用
					</view>
					<view class="use">
						去使用
					</view>
				</view>
			</view>
			* 
			* */
		}
	}
	
</style>
